The idea

I want a keyboard that I can jot ideas on without having to fuss with the whole laptop setup. Typing without a screen gives some added benefits, that it brings you back into your surroundings, for example allowing you to really focus on a talk.
Also, you don't dwell or cycle on what you've written, giving the notes a more train-of-thought feel.

Features

• Light / portable
• Durable (ideally it would be waterproof so rain wouldn't matter)
• LED lights when it receives input to indicate it's actually recording, or when the battery is running low
• Ridiculously long battery life (should be on the order of a week, like my headphones)
• ON/OFF switch, so it doesn't record garbage in a backpack etc.
• Records the exact timestamps of keypresses, allowing situation in time, but also real-time playback of sorts, and auto-cutting of files.
• some rather easy method of transfering it to my more usable devices, for reading and such. (possibly just by plugging it in?)

My working prototype

I do have a working prototype of sorts for this project. I just put my laptop in my backtop, making sure it doesn't turn off when I close the lid.
Then, as long as the cursor is in an editor, I can use a wireless keyboard to jot down my ideas without thinking about it.

In my personal experience with this prototype, the idea is wonderful. Unfortunately there are a few downsides to this method, or I would be satisfied and not feel compelled

Building the thing

external resources

my component choice